CA 19-9 Test is used to help confirm a patient's cancer diagnosis and assess cancer treatment. CA 19-9 Test measures the amount of a protein called CA 19-9 (cancer antigen 19-9) in a sample of your blood.
CA 19-9 Test
Here are the basic details for CA 19-9 Test.
Also Known As |
Cancer Antigen 19-9 Test |
Test Type |
Blood Test |
Sample Type |
Blood Serum |
Preparation |
No Special Preparation Required |
Fasting |
No |
Gender |
All |
Age-Group |
Any |
Normal Value |
< 37 U/mL |
Reporting Time |
8 - 24 Hours |
Cost |
800 - 1500* INR |
*Price range may vary as per location, lab type, and procedure of lab test.
CA 19-9 Test Full Form
Full Form of CA 19-9 Test is Cancer Antigen 19-9 Test.
CA 19-9 Test Means
CA 19-9 is a tumor marker that stands for Carbohydrate Antigen 19-9.
- It is a blood test used to measure the levels of CA 19-9 in the bloodstream.
- CA 19-9 is primarily associated with cancers, particularly pancreatic, colorectal, and gastric cancers.
- Elevated CA 19-9 levels may indicate the presence of these cancers or be used to monitor treatment response and detect recurrence.
- However, CA 19-9 levels can also be elevated in non-cancerous conditions, so further diagnostic tests are needed for accurate diagnosis.
CA 19-9 Test Purpose
The purpose of the CA 19-9 test is to measure the levels of Carbohydrate Antigen 19-9 (CA 19-9) in the blood.
- It is primarily used as a tumor marker to assist in the diagnosis and monitoring of certain cancers, including pancreatic, colorectal, and gastric cancers.
- The test helps in evaluating the effectiveness of cancer treatment and detecting cancer recurrence.
CA 19-9 Test Preparation
Here is the basic preparation for CA 19-9 Test.
Before Test
- No specific preparation is usually required for the CA 19-9 test.
- However, it is essential to inform your healthcare provider about any medications, supplements, or medical conditions you have, as they may affect the test results.
During Test
- The CA 19-9 test is a simple blood test.
- A healthcare professional will collect a blood sample from a vein, typically from your arm.
After Test
- There are no specific post-test instructions or restrictions.
- You can resume your regular activities immediately after the blood draw.
- The blood sample will be sent to a laboratory for analysis, and your healthcare provider will discuss the results with you during a follow-up appointment.
CA 19-9 Test Procedure
The CA 19-9 test procedure typically involves the following steps:
- You will be asked to sit or lie down in a comfortable position.
- A healthcare professional will clean the site (usually the arm) where the blood will be drawn.
- They will then apply a tourniquet above the site to make the veins more visible and accessible.
- A sterile needle will be inserted into a vein, and blood will be collected into a vial or tube.
- Once an adequate amount of blood is collected, the needle will be removed, and pressure will be applied to the site to stop any bleeding.
- A bandage or cotton ball may be placed on the puncture site to cover it.
- The blood sample will be labeled and sent to a laboratory for analysis.
CA 19-9 Test Result
When interpreting CA 19-9 test results, here are three key points to consider:
- CA 19-9 is a tumor marker commonly used for gastrointestinal cancers, particularly pancreatic and colorectal cancers, but it can also be elevated in other conditions.
- An elevated CA 19-9 level alone is not diagnostic of cancer and should be evaluated in conjunction with other clinical findings, imaging studies, and medical history.
CA 19-9 Test Report
CA 19-9 Test Report PDF
CA 19-9 Test Normal Report
CA 19-9 Normal Test Report PDF Format
CA 19-9 Test Normal Result Report PDF
CA 19-9 Test Abnormal Report
CA 19-9 Abnormal Test Report PDF Format
CA 19-9 Test Abnormal Result Report PDF
CA 19-9 Test Normal Range
Here is CA 19-9 test normal range mentioned below.
CA 19-9 Level |
Interpretation |
< 37 U/mL |
Normal range |
37 - 100 U/mL |
Slightly elevated |
> 100 U/mL |
Elevated |
CA 19-9 Test Interpretation
Here are details for interpreting CA 19-9 test results:
CA 19-9 Level |
Interpretation |
< 37 U/mL |
Within normal range |
37 - 100 U/mL |
Slightly elevated CA 19-9 levels (maybe non-cancerous causes) |
101 - 500 U/mL |
Moderately elevated CA 19-9 levels (may suggest cancer) |
> 500 U/mL |
Significantly elevated CA 19-9 levels (may indicate cancer) |
Specimen Requirements For CA 19-9 Test
Here are the specimen requirements for the CA 19-9 Test.
Specimen |
Serum |
Volume |
0.6 ml |
Container |
Red top Vacutainer tube with EDTA anticoagulant |
CA 19-9 Test is Safe?
The CA 19-9 test is generally considered safe and is a routine blood test performed in a clinical laboratory setting.
- It involves a standard blood draw procedure, which carries minimal risks such as temporary discomfort, bruising, or very rarely, infection at the site of needle insertion.
- There are no known serious or significant risks associated with the CA 19-9 test itself, and any potential risks are generally related to the blood draw process rather than the specific test.
When Do You Get CA 19-9 Test Results?
- The turnaround time for CA 19-9 test results can vary depending on the laboratory performing the analysis and the specific testing methods used.
- In most cases, it takes a few hours to receive the test results, typically within 8 - 24 hours after the blood sample is collected.
CA 19-9 Test Limitation
Here are some possible limitations of the CA 19-9 Test.
- False positives can occur due to other conditions.
- Not specific to pancreatic cancer.
- CA 19-9 Test cannot be used for early detection.
- Levels may not correlate with tumour size.
- Results may vary based on individual factors.
CA 19-9 Test Risk Factors
Here is the potential risk factor of the CA 19-9 Test.
- Risk factors for elevated CA 19-9 levels include pancreatic cancer.
- Other conditions such as liver and gallbladder diseases can also cause elevated levels.
- Certain factors, such as age and smoking, may increase the risk of developing conditions associated with elevated CA 19-9 levels.
Doctor Recommendations After CA 19-9 Test Result
Here are Doctor recommendations or consult a specialist after CA 19-9 Test.
CA 19-9 Test Results |
Doctor to Visit |
Reason |
High |
Oncologist |
Potential cancer or other related conditions |
Normal |
General Practitioner |
Routine monitoring or general health |
Low |
General Practitioner |
No specific medical concern |
CA 19-9 Test Price
Here are the estimated CA 19-9 Test Price in India with top different cities:
*Prices are approximate and vary depending on a specific laboratory or healthcare facility.
Summary
Overall, CA 19-9 Test is a commonly used tumor marker test that helps in the diagnosis and management of gastrointestinal cancers, but it should be interpreted in conjunction with other clinical findings for accurate assessmen. Also check Drlogy Test for detailed information about all medical tests for patients, doctors, scholers and medical students.
Reference
- CA 19-9 Test - Wikipedia [1].
- The clinical utility of serum CA 19-9 in the diagnosis, prognosis and management of pancreatic adenocarcinoma: An evidence-based appraisal - NIH [2].